# Contagious Mayhem vs Frontier Siege

The clearest difference is iOS requirement: Contagious Mayhem at 12.0 against Frontier Siege's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Contagious Mayhem ships an update every 2 months, Frontier Siege every 6 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Contagious Mayhem | Frontier Siege |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 147 MB | 351 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Satakunnan Ammattikorkeakoulu Oy](https://appshunter.io/developer/1607646667) | [Omnia Data Analytics LLC](https://appshunter.io/developer/1896568110) |

## What reviewers say

### Contagious Mayhem

[App page](https://appshunter.io/ios/app/contagious-mayhem/id6472609324)

**Features:** macOS Compatibility

**In-app purchases:** none


### Frontier Siege

[App page](https://appshunter.io/ios/app/frontier-siege-tower-defense/id6782207316)

**In-app purchases:** none


## Frequently asked questions

### Is Contagious Mayhem free?

Contagious Mayhem is free to download, with no in-app purchases.

### Is Frontier Siege free?

Frontier Siege is free to download, with no in-app purchases.

### Do Contagious Mayhem or Frontier Siege have ads?

Neither Contagious Mayhem nor Frontier Siege shows ads.

### Which is updated more often, Contagious Mayhem or Frontier Siege?

Contagious Mayhem ships an update every 2 months, and Frontier Siege every 6 weeks. Most recently, Contagious Mayhem was updated on November 4, 2026 and Frontier Siege on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*